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Finding the Fourth Proportional to 194,666.80, 268,600.08 and 111,864.78

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Solution

The fourth proportional to 194,666.80, 268,600.08 and 111,864.78 is: 154,350.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,666.80 : 268,600.08 = 111,864.78 : x
  2. Step 2: Convert to fraction form
    194,666.80/268,600.08 = 111,864.78/x
  3. Step 3: Cross multiply
    194,666.80x = 268,600.08 × 111,864.78
  4. Step 4: Simplify right side
    194,666.80x = 30,046,888,857.18
  5. Step 5: Solve for x
    x = 30,046,888,857.18/194,666.80
  6. Step 6: Final answer
    x = 154,350.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.